Method of precooling enclosures



,April 26, 1938. A.E.STAC E Y, JR ,34

METHOD OF FRECOOLING ENCLOSURES I I Fild June 14, 1952 INVENTOR a ALF/2E0 Eoww STACEY J2.

ATTORNEY Patented Apr. 26, 1938 g I I UNITED STATES PAT T OFFICE METHOD OF PRECOOLING ENCLOSURES Alfred E. Stacey, 11%, Essex Fells, N. J., assignor, by mesne assignments, to CarrierCorporation,

Newark, N. J., a corporation of Delaware Application June 14, 1932, Serial No. 611,087 I 1- Claim. (Cl. 62-24)v This invention relates to an-improved method supported on blocks 1. The casing 5 may be suitemployed in a system for precooling confined ablyinsulated by covering it with cork (not areas, more particularly the interiors of railroad shown) or other material having similar propcars. I erties, Ice may be loadedjwithin' the tank 6 The general object of the invention is to prothrough an entrance door 8 in the casing 5. For 5 vide an improved method for lowering the .tempurposes of illustration, ice blocks 5 are shown, perature of a railroad car, prior to occupancy, although it isobvious that cracked ice or similar and usually while it is standing in such places cooling'm'edium could beused with equal facility.

, as railroad terminals, train sheds, or at way- From the bottom of the tank 6, pipelllfleads 10 stations. Under summer conditions, railroad to the inlet of the pump ll, mounted in the 10 cars, especially those made of metal, store up space provided between the tank 6 and one side relatively large quantities of heat, due not only of the s ng 5. F om the d se a e 0 t to prevailing high temperatures, but also to sun D p I a pip "leads to a series of cooling effect. When these cars, after standing exposed The coils preferably having lo to the sun, are moved into a tation and m de tended surface to promote heat transfer,- are 15 into trains, this stored heat is given up. In the mounted on a bracket H attached to one side still air of a railroad terminal, for example, this the casing Which bracket cooperates W h heat does not freely escape and hence makes the t p a Sides of the casing to form a p human occupancy of the ar almost unbe rabl sageway for air over the coils. From the bottom This is particularly true of sleeping cars, in which of the Co s '3, a P pe in Which is Suitably 20 the berths are usually made up before th a' positioneda series of nozzles 16, leads to a point sengers board the train. The berth arrangement, above e ice in the tank 6.

as well as the bedding,'curtains and partiti n A fan ll, driven by an electric motor or other still further confines the he t and t d t suitable means (not shown), is mounted in the lengthen the time during which this heat would p w y rm d between the p of the 25 be dissipated by radiation. If, however, cool air nc 5 and bracket F m th dis har p is forced through the ears, prior to occ p n y, ing of the fan II, a conduit l8, preferably made the stored up heat will be removed and the metal canvas, other Suitable fabric. sewed O of the car itself will be cooled to a temperature Otherwise attached to hoops, is p ded fo he below that of the surrounding atmosphere. purpose of conveying the air m an H to th so Hence,avery comfortable condition willbeestab- Point Of Usage. y, the interior of the car lished ithin th r whi h, even though the i9. Obviously, constructing the conduits of fabtrain is standing still, will be maintained for a tie s a vantageous in overcoming the numerous period of several hours, Qnee th t m gets difficulties encountered in using metal ducts. For under way, the motion of air through and o r example, this construction provides extreme flex 35 the cars will tend to keep them reasonably comibility With maximum impli i y. Further, the fortable. conduits do not require a covering of cork or Further Objects and features covering adv nfelt to prevent sweating since the fabric itself tages in design, operation and making for maxlhas excellent heat insulating properties. Acmum utility and flexibility under varying condicording to applicant's preferred method, the con- 40 tions, more especially in railroad car cooling, will duit l be led into the Car 19 hr a be more apparent from the following description Window the lower Sash being raised or t s of a typical form of the invention to be read inv p p The Conduit It wi l be ly t connection with the accompanying drawing which tached to the interior of the car, preferably at I shows a reeooling apparatus, in section, in assoa point near its ceiling, and its outlet, which 45 ciation with a railroad car, a portion of the latter ay e n t form of a nozzle, y be directed being broken away to better show the connection toward an end of the car- 1 therebetween. A second conduit 2!, similar in construction Referring to the drawing, similar designations to conduit i8, leads from an opening 22 in the referring to similar parts, numeral 2 represents easing 5 t0 t e Window 0r tO,aI1 j e t the side members of a truck mounted on axle 3, n nd into the car I9 for the pu of carried by wheels 4. Mounted on side members n in ir fr m h r t the unit. If 2 is a casing or unit enerally designated by desired, conduit I! may be laid on the floor and numeral 5. Within casing 5 and cooperating conduit 2| terminate at the window. with one side to form a part thereof is a tank 8 Assuming that the tank 6 has been charged 55 with ice, the" cooling unit is rolled to a position adjacent a railway passenger car, thewindow 10 is Opened, conduit II is inserted in and, if desired, attached to the upper part of the car I! and 'conduit II is similarly inserted Within same or an adjacent window opening and suit-' ably placed in position.

The pump II is placed in operationbv start ing itsmotor (not shown). *Cold' water-from melting ice is; therefore, drawn through pipe I.

under the influence of pump i l; forced through I pipe i2, cooling coils II and discharged through pipe II and nonles li over the blocks of ice in' "the'formoi aspray.;

Starting the tan l'l induces a circulationoi airv from the car I! through conduit 2i," opening I2,

the sprays i'rom nczzles ll, coolingcoils llyian' l1; and the conduit ll,-back tor the interior of the car, the path of the air"being"clearly in-' dicated by the arrows on the drawing. The-hot air from the car ll through conduit; as above pointed out, first 'meets' thesprays from nozzles- IL The large surface presented by the droplets ofv cold water a1 great deal of .liminary' cooling and jdehumidii'ying.

thenhpasses over the coils 3,.in which;obviously, is, the coldest: and its cooling and dehumldiiication' satisfactorily before introduction "to the car is throug the "9 Dampers II are provided for controlling the .l

volume of air admitted to the cooling unit from the car ii, if and as desired.

A pipe 24, in which is a hand valve II, is

vided in the bottom of the tank'for drainingoi! the melt;

Since certain changes in carrying out the above. process and in the constructions set forth, which embody the invention may be made withis out departing from itsscope, it is intended that all matter contained in theabove description or shown in the, -accompanying drawing shall be in- 3 'Having described myinvention, what! claim as new and desit 'to secure by letters Patent the United States is:

' a method ofcoolingarailroad 0.; consisting in withdrawing air from. the ear at a point a considerable distance below the ceiling level, con

veying the air from said point of removal to' a 'point of conditioning 'l'ocatedswithout' thelcar; passing the air-in direct heat exchange in indirect heat exchange with a'cooling medium at-said conditioning point to eflectccob' ing and dehumidiflcationthereof,"-delivering the dehumidifled air to the car at a point adjacent the point oi withdrawal, and dischargitlz the air within the car at a level other than thitt oi the point or withdrawal, the flow-o'f air discharged into the being directedtowardan' endotthe 'ALmEnE. sTAcEm'JaL' sterpreted asillustrative and not in a limiting 

